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Diss Factsheets
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EC number: 202-267-0 | CAS number: 93-68-5
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In the key study the effects of the test item Acetessig-o-toluidid TTR on the growth of the freshwater green alga Desmodesmus subspicatus were tested. No inhibiting effects on specific growth rate and yield were found in the limit concentration of 100 mg/L. The EC50-values for specific growth rate inhibition (ErC50) and inhibition of yield (EyC50) after 72 h were > 100 mg/L.
In the supporting study the 72 hr ErC50 for freshwater algae Selenastrum capricornutum = 654 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 100 mg/L
- EC10 or NOEC for freshwater algae:
- 100 mg/L
Additional information
The key study was conducted 2008 and reported 2009 according to the OECD Guideline for the testing of chemicals 201 and principles of GLP.
The toxicity of Acetessig-o-toluidid TTR to the unicellular freshwater green alga Desmodesmus subspicatuswas determined according to the principles of OECD 201.The aim of the study was to assess the effects on growth rate and yield over a period of 72 h.
The study was conducted under static conditions.
All effect levels are given based on nominal concentrations of the test item.
The EC50-values for specific growth rate inhibition (ErC50) and inhibition of yield (EyC50) after 72 h were > 100 mg/L.
The toxicity to aquatic algae was performed in the supporting study according to OECD Guideline 201 in year 1999. The study was published in the SIDS Dossier in year 2003 by the lead organization Mitsuboshi Chemical Co., Ltd. (AAOT Consortium), Japan.
The ErC50 for freshwater algae Selenastrum capricornutum is 654 mg/L after 72 hr exposure to the test item.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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